We all make directories. It’s one way that we attempt to bring order to the chaos that is the filesystem.
We’re also pretty lazy. Creating a new directory and navigating into it is usually a two command affair:
mkdir order-i-say
cd order-i-say
Not anymore it isn’t:
mkdir quickly-now && cd $_
Explanation
$_is the last argument passed to the previous command. In our case, it’s the directory name. There’s a lot more here.
Just think of all those saved keystrokes.